Commercial refrigerated shelf
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Solution Overview
Problem
Commercial refrigerated display cases with revolving doors face disruptions during peak hours, maintenance, and cleaning, and these doors reduce the usable storage space when moved into a storage position within the refrigerated area.
Innovation Solution
A refrigerated display case design featuring upper and lower horizontal support rails with corresponding runner elements and door carriages for revolving doors, which can be stored outside the refrigerated space using a lateral storage door with parallel storage rails, allowing the doors to be packed in a compact position without occupying the storage space, thus maintaining the full interior for food storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If revolving doors are moved into a storage position within the refrigerated display case, then the access opening can be fully opened for loading and unloading, but the commercially usable refrigerated space is reduced
Solution Approach 1:
The revolving doors are extracted from the refrigerated display case interior and relocated to a separate storage door structure positioned outside the refrigerated space. This allows the doors to be stored without occupying valuable refrigerated storage volume, while still enabling full access to the display case opening when needed.
Solution Approach 2:
The storage solution moves the revolving doors from the horizontal plane (inside the refrigerated case) to a vertical arrangement outside the case, utilizing the third dimension (depth/exterior space) to resolve the space conflict. The doors are stored in a vertical orientation on the exterior door structure rather than horizontally within the limited refrigerated volume.
2Loss of energy
If revolving doors are used in the access opening, then energy efficiency is improved, but disruptions occur during peak hours, maintenance, and cleaning
Solution Approach 1:
The system provides dynamic adaptability by allowing the revolving doors to be positioned in different states: closed during normal operation for energy efficiency, and fully open during peak hours, maintenance, or cleaning by relocating them to the exterior storage position. This dynamic reconfiguration enables the system to adapt to varying operational requirements.
Solution Approach 2:
The exterior storage door structure serves multiple functions: it houses the revolving doors for normal operation, allows complete opening of the access aperture during peak periods, and provides access points for maintenance and cleaning activities. This multi-functional design resolves the contradiction between energy efficiency and operational flexibility.
3Ease of operation
If revolving doors are stored within the refrigerated display case, then the access opening can be fully opened, but the storage space for food is reduced
Solution Approach 1:
The revolving doors are extracted from the refrigerated display case interior and relocated to a separate storage door structure positioned outside the refrigerated space. This allows the doors to be stored without occupying valuable refrigerated storage volume, while still enabling full access to the display case opening when needed.
Data Source
Figure 1
Figure 2
Figure 3~6
AI summary
The invention relates to a refrigerated shelf (10) for storing food, with a shelf body (12) open at the front, which surrounds a refrigerated space (14) and defines an access opening (16) lying in a vertical plane, an upper and a lower horizontal support rail (22,24) on the shelf body (12), a door storage (30) on the side of the shelf body (12), the door storage (30) having an upper and a lower storage rail assembly (32) which are each connected to the corresponding upper and lower support rail (22,24) and a plurality of revolving doors (51-56) which can be rotated about a vertical axis (60), each revolving door (51-56) being assigned an upper and/or lower door slide (72,74) on which the revolving door (51-55) is rotatably mounted via a rotary joint (120,130) and which is displaceably mounted on the upper and/or lower support rail (22,24) and on the upper and/or lower storage rail arrangement (32). , and where all revolving doors (51-56) i stand side by side in the access opening (16) in their position of use and stand one behind the other in the door store (30) in their storage position.